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N o x i o u s S p e c i e s
Identification Guide
Value and qual ity assurance sect ion
2015 Noxious Species Identification Guide
Value and Quality Assurance Section
Sources of information and other photographs:
DiTomaso, J., & Healy, E. (2007). In Weeds of California and Other Western States (Vol. 1 and Vol. 2).
Oakland: Regents of the University of California.
SOUTHWEST ENVIRONMENTAL INFORMATION NETWORK, SEINet. 2014. http//:swbiodiversity.org/seinet/
index.php. Accessed in October.
USDA, NRCS. 2014. The PLANTS Database (http://plants.usda.gov, 03 September 2014). National Plant
Data Team, Greensboro, NC 27401-4901 USA.
(1996). In T. Whitson (Ed.), Weeds of the West (5th ed.,). Newark, CA: The Western Society of Weed
Science in cooperation with the Western United States L a n d G r a n t U n i v e r s i t i e s
Cooperative Extension Services.
Photographs are credited to Value and Quality Assurance Section unless otherwise credited to others.
BLANK PAGES ARE INTENTIONALLY LEFT BLANK.
DOCUMENT SET UP TO PRINT TWO-SIDED.
Tree of Heaven
(Ailanthus altissima)
Jerusalem Thorn
(Parkinsonia aculeata)
Desertbroom
(Baccharis sarothroides)
Saltcedar
(Tamarix spp.)
contents
trees + shrubs
Coastal Sandbur / Field Sandbur
(Cenchrus spinifex)
Jointed Goatgrass
(Aegilops cylindrica)
Giant Reed
(Arundo donax)
Camelthorn
(Alhagi maurorum)
Wild Oat
(Avena fatua)
grasses
Bermudagrass
(Cynodon dactylon)
Hairy Crabgrass
(Digitaria sanguinalis)
Southern Sandbur
(Cenchrus echinatus)
Buffelgrass
(Pennisetum ciliare)
Fountaingrass
(Pennisetum setaceum)
Johnsongrass
(Sorghum halepense)
Lehmann Lovegrass
(Eragrostis lehmanniana)
3
4
5
6
9
10
11
12
13
14
15
16
17
18
19
20
herbs + forb
Dalmatian Toadflax
(Linaria dalmatica)
Field Bindweed
(Convolvulus arvensis)
Yellow Starthistle
(Centaurea solstitialis)
Common Sunflower
(Helianthus annuus)
Yellow Sweetclover
(Melilotus officinalis)
Scotch Thistle
(Onopordum acanthium)
Camphorweed
(Heterotheca subaxillaris)
Silverleaf Nightshade
(Solanum elaeagnifolium)
Puncturevine
(Tribulus terrestris)
Common Mullein
(Verbascum thapsus)
Tumbleweed / Prickly Russian Thistle
(Salsola tragus)
Diffuse Knapweed
(Centaurea diffusa)
Russian Knapweed
(Acroptilon repens)
Kochia / Burningbush
(Bassia scoparia)
Carelessweed
(Amaranthus palmeri)
Black Mustard
(Brassica nigra)
Sahara Mustard
(Brassica tournefortii)
Maltese Starthistle
(Centaurea melitensis)
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Tree of Heaven (Ailanthus altissima) 3
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Grows in riparian areas.
Up to 65’ tall.
Perennial
(Baccharis sarothroides) Desertbroom 4 3
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Arizona Native.
Up to 10’ tall.
Perennial Not
Available
Jerusalem Thorn (Parkinsonia aculeata) 5
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Arizona Native.
Up to 40’ tall.
Perennial
Top right and bottom right. Photo Credit: Max Licher from SEINet Research Database
Left. Photo Credit: Liz Makings from SEINet Research Database
(Tamarix spp.) Saltcedar 6 5
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
- Perennial Not
Available
Jointed Goatgrass (Aegilops cylindrica) 9
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 2.5’ tall. Annual
Photo Credit: USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org
(Alhagi maurorum) Camelthorn 10 9
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 4’ tall. Perennial Not
Available
All photos. Photo Credit: Max Licher from SEINet Research
Giant Reed (Arundo donax) 11
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 20’ tall. Perennial
(Avena fatua) Wild Oat 12 11
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 4’ tall. Annual
Right. Photo Credit: Max Licher from SEINet Research
Left. Photo Credit: Mark W. Skinner, hosted by the USDA-NRCS PLANTS Database
Southern Sandbur (Cenchrus echinatus) 13
Seed Source listing Noxious Status Duration General Information
All photos. Photo Credit: Forest and Kim Starr from SEINet Research
TNF
AZ
FED
PNW
RNW
RGNW
Up to 8” tall. Annual Not
Available
(Cenchrus spinifex) Coastal Sandbur / Field Sandbur 14 13
Seed Source listing Noxious Status Duration General Information
All photos. Photo Credit: Max Licher from SEINet Research
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 11” tall. Annual
Perennial
Not
Available
Bermudagrass (Cynodon dactylon) 15
Seed Source listing Noxious Status Duration General Information Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 2” tall. Perennial
(Digitaria sanguinalis) Hairy Crabgrass 16 15
Seed Source listing Noxious Status Duration General Information
Left. Photo Credit: The Morton Arboretum from SEINet Research
Bottom right. Photo Credit: Patrick Alexander from SEINet Research
Top right. Photo Credit: Max Licher from SEINet Research
TNF
AZ
FED
PNW
RNW
RGNW
Up to 2’ tall. Annual Not
Available
Lehmann Lovegrass (Eragrostis lehmanniana) 17
Top right and bottom right. Photo Credit: Patrick Alexander
Bottom left. Photo Credit: Liz Makings from SEINet Research
Top left. Photo Credit: Max Licher from SEINet Research
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 2’ tall. Perennial
(Pennisetum ciliare) Buffelgrass 18 17
Seed Source listing Noxious Status Duration General Information Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 3’ tall. Perennial
Fountaingrass (Pennisetum setaceum) 19
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 3’ tall. Perennial Not
Available
(Sorghum halepense) Johnsongrass 20 19
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 8’ tall. Perennial
Russian Knapweed (Acroptilon repens) 23
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 4’ tall. Perennial
All two photos above. Photo Credit: Max Licher from SEINet Research
(Amaranthus palmeri) Carelessweed 24 23
Seed Source listing Noxious Status Duration General Information
Bottom left. Photo Credit: Patrick Alexander from SEINet Research
Right. Photo Credit: Michael J. Plagens from SEINet Research
Top left. Photo Credit: Max Licher from SEINet Research
TNF
AZ
FED
PNW
RNW
RGNW
Up to 5’ tall. Annual
Kochia / Burningbush (Bassia scoparia) 25
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 2’ tall. Annual
(Brassica nigra) Black Mustard 26 25
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 6.5’ tall. Annual
Top and Bottom Right. Photo Credit: Max Licher from SEINet Research Database
Left. Photo Credit: Morton Arboretum from SEINet Research Database
Sahara Mustard (Brassica tournefortii) 27
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 4’ tall. Annual
(Centaurea diffusa) Diffuse Knapweed 28 27
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 3’ tall. Annual
Perennial
Not
Available
Maltese Starthistle (Centaurea melitensis) 29
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 2’ tall. Annual
Biennial
Not
Available
All photos. Photo Credit: Max Licher from SEINet Research
(Centaurea solstitialis) Yellow Starthistle 30 29
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 3’ tall. Annual
All photos. Photo Credit: Max Licher from SEINet Research
Not
Available
Field Bindweed (Convolvulus arvensis) 31
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 4’ tall. Perennial
All photos. Photo Credit: Max Licher from SEINet Research
(Helianthus annuus) Common Sunflower 32 31
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 10’ tall. Annual
Camphorweed (Heterotheca subaxillaris) 33
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 6’ tall. Annual
(Linaria dalmatica) Dalmatian Toadflax 34 33
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 3’ tall. Perennial
Photo Credit: Susan Turner, British Columbia Ministry of Forests, Bugwood.org
Yellow Sweetclover (Melilotus officinalis) 35
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 6.5’ tall. Annual
Biennial
Perennial
All photos. Photo Credit: Max Licher from SEINet Research
(Onopordum acanthium) Scotch Thistle 36 35
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 12’ tall. Biennial
All photos above. Photo Credit: Max Licher from SEINet Research
Tumbleweed (Salsola tragus) 37
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 3’ tall. Annual Not
Available
(Solanum elaeagnifolium) Silverleaf Nightshade 38 37
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 3’ tall. Perennial
Puncturevine (Tribulus terrestris) 39
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
- Annual
Bottom. Photo Credit: Max Licher from SEINet Research Database
Top. Photo Credit: Patrick J. Alexander hosted by the USDA-NRCS PLANTS Database
(Verbascum thapsus) Common Mullein 40 39
Seed Source listing Noxious Status Duration General Information
TNF
AZ
FED
PNW
RNW
RGNW
Up to 5’ tall. Annual
All photos. Photo Credit: Max Licher from SEINet Research